Leoxaed bellffigbath



L. BELLINGRATH, Jr.

Turpnti'ne Still. No. 20,465. Patented June 1. 1858.

AM. PHCIYO-LITHOv CI). N L (OSEDRNE'S PROCESS.)

UNITED STATES PATENT OFF CE;

LEONARD BELLINGRATH, JR, OF FAYETTEVILLE, N. 0., ASSIGNOR TO D. AND \V. MOLAURIN AND JAS. IV. STRANGE, ALL OF SAME PLACE.

APPARATUS FOR DISTILLING TURPENTINE.

Specification forming part of Letters Patent No. 20, 165, dated June 1, 1858.

1 '0 all whom it may concern.-

Be it known that I, LEONARD BELLINGRATH, J12, of Fayetteville; in the county of Cumberland, in the State of North Carolina, have invented a new and improved apparatus for distilling turpentine for the purpose of producing superior rosin of virgin as well as yellow dip; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawing, and to the letters of reference marked thereon.

The nature of my invention consists in providing the copper still A, which holds the charge, with an outside iron kettle, to prevent the fire from coming in contact with the still holding the charge, the air which fills the space between the inner still and outside kettle, to be heated bya furnace under the outside kettle so that it will distill the charge without scorching by regulating the heat by cold-air inlets and a thermometer.

To enable others skilled in the art to make and use my apparatus, I will proceed to describe its construction and operation.

I construct the inner still, A, in the form as shown in drawing, resting by means of a flange on the outside kettle, B. The top 0, with the opening for cap, rests on the inner still, A. The flanges of the inner still and outside kettle and the top are bolted together by one row of bolts. (See drawing.)

Letter D represents the pipe fastened to the inner still, and passing through the outside kettle to let off the rosin.

E F G H are openings, provided with cocks or sliding valves for the purpose of circulating cool air if the heat should rise too high.

I is a thermometer to gage the heat.

Letter K is a cap, L an arm, and M a worm to condense the steam into spirit of turpentine.

N and O stays to support still A.

The operation is as follows: The alembic A being charged and heat applied below the division-plate I, the air inclosed between the alembic and its case or jacket B is heated by conduction to the proper temperature to drive over the product of distillation; but there being no natural circulation of air in this space there is danger of its becoming too highly heated, and thus produce the same bad effect as heat directly applied to the'alembic would produce. To remedy this I apply air inlets and exits G H EEfurnished with stop-cocks or valves to said air-space, as well as thermometers, whereby the most perfect regulation of 

